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****************************************************************************/


#ifndef QWFLICKSENSORGESTURERECOGNIZER_H
#define QWFLICKSENSORGESTURERECOGNIZER_H

#include <qsensorgesturerecognizer.h>
#include <QtSensors/QAccelerometer>
#include <QtSensors/QOrientationSensor>
#include "qtsensorgesturesensorhandler.h"

QT_BEGIN_NAMESPACE

struct twistAccelData {
    qreal x;
    qreal y;
    qreal z;
};

class QTwistSensorGestureRecognizer : public QSensorGestureRecognizer
{
    Q_OBJECT
public:
    explicit QTwistSensorGestureRecognizer(QObject *parent = 0);
    ~QTwistSensorGestureRecognizer();

    void create();

    QString id() const;
    bool start();
    bool stop();
    bool isActive();

Q_SIGNALS:
    void twistLeft();
    void twistRight();

private slots:
    void accelChanged(QAccelerometerReading *reading);
    void orientationReadingChanged(QOrientationReading *reading);
    void checkTwist();

private:

    QOrientationReading *orientationReading;
    bool active;
    bool detecting;
    QList <twistAccelData> dataList;
    bool checking;
    void reset();
    bool checkOrientation();
    int increaseCount;
    int decreaseCount;
    qreal lastAngle;
    QList <QOrientationReading::Orientation> orientationList;

    qreal detectedAngle;

};
QT_END_NAMESPACE
#endif // QWFLICKSENSORGESTURERECOGNIZER_H